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来自以色列塔邦洞穴新发现的更新世人类牙齿。

Newly recognized Pleistocene human teeth from Tabun Cave, Israel.

作者信息

Coppa Alfredo, Grün Rainer, Stringer Chris, Eggins Stephen, Vargiu Rita

机构信息

Department of Animal and Human Biology, Section of Anthropology, University of Rome La Sapienza, Piazzale Aldo Moro, 5, 00185 Rome, Italy.

出版信息

J Hum Evol. 2005 Sep;49(3):301-15. doi: 10.1016/j.jhevol.2005.04.005.

Abstract

Seven human teeth from Tabun Cave, Israel, curated at the Natural History Museum London since 1955, are of uncertain provenance and identity. They are all from the upper dentition, without duplications, and are characterized by a similar preservation. The Catalogue of Fossil Hominids (1975) suggested that they might have derived from Tabun Layer A (Bronze Age to Recent). However, one of us (AC) noted some distinctive features of these teeth that warranted further study. They are here assigned to a single individual, Tabun BC7. Their morphology and metrics were then compared with the frequency of Late Pleistocene and Early Holocene groups from Europe, North Africa and Middle East. A fragment of the right M3 crown of Tabun BC7 was removed for ESR and U-analysis, and it was determined that only samples from Layer B have similar dose values. Using the sediment dose values of layer B, preliminary age estimates of 82 +/- 14 ka (early U-uptake) and 92+/-18 ka (linear uptake) were obtained. U-series disequilibrium determined from other samples attributed to Layer B resulted in a U-uptake history close to linear uptake, giving a very comparable age estimate of 90(+30)(-16) ka. The dose value previously obtained on an enamel fragment from the Tabun C1 dentition is nearly double the value measured for BC7, and tentative age estimates for C1 were in the range of 143+/-37 ka. However, due to uncertainties in the exact provenance of the human fossils, we cannot confirm that C1 is older than the new tooth sampled here, and both C1 and BC7 can be attributed to Layer B on chronological grounds. On the basis of chronology, dental morphology and metrics, the specimen named Tabun BC7 was identified as a probable Neanderthal.

摘要

自1955年起保存在伦敦自然历史博物馆的来自以色列塔邦洞穴的七颗人类牙齿,其来源和身份不明。它们均来自上牙列,没有重复,且保存情况相似。《化石人科目录》(1975年)表明,它们可能来自塔邦A层(青铜时代至今)。然而,我们中的一人(AC)注意到这些牙齿的一些独特特征,值得进一步研究。在此将它们归为一个个体,即塔邦BC7。然后将其形态和测量数据与来自欧洲、北非和中东的晚更新世和早全新世群体的频率进行了比较。移除了塔邦BC7右上M3牙冠的一块碎片进行电子自旋共振(ESR)和铀分析,确定只有来自B层的样本具有相似的剂量值。利用B层的沉积物剂量值,初步得出年龄估计值为82±14千年前(早期铀摄取)和92±18千年前(线性摄取)。从其他归为B层的样本确定的铀系不平衡导致铀摄取历史接近线性摄取,得出非常相近的年龄估计值为90(+30)(-16)千年前。之前在塔邦C1牙列的一块牙釉质碎片上获得的剂量值几乎是BC7测量值的两倍,C1的初步年龄估计值在143±37千年前范围内。然而,由于人类化石的确切来源存在不确定性,我们无法确认C1比此处采样的新牙齿更古老,且基于年代顺序,C1和BC7都可归为B层。基于年代学、牙齿形态和测量数据,名为塔邦BC7的标本被鉴定为可能是尼安德特人。

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